Security & Testing Tools

JWT debugger, security scanners, static analysis, penetration testing tools, and test frameworks — ship secure, well-tested code.

🔑 JWT Debugger
Decode, verify, and debug JSON Web Tokens entirely in your browser. Inspect headers, payload, and signature — no server needed.
Free
🔬 SonarQube
Continuous code quality and security analysis. Detect bugs, vulnerabilities, and code smells across 30+ languages.
FreeOpen Source
⚡ OWASP ZAP
World's most popular free web app security scanner. Find vulnerabilities with automated scanning and manual testing tools.
FreeOpen Source
💥 Burp Suite
Industry-standard web security testing platform. Intercept, inspect, and modify HTTP traffic. Free Community Edition available.
Free
🎫 jwt.io
Debug, verify, and learn about JSON Web Tokens. The original JWT debugger with library support for every language.
Free
🔒 SSL Labs Test
Analyze your server's SSL/TLS configuration. Get a detailed grade and actionable recommendations for improvement.
Free
🎭 Playwright
Reliable end-to-end testing for modern web apps. Cross-browser, auto-wait, and network interception — by Microsoft.
FreeOpen Source
🌲 Cypress
Fast, reliable testing for anything that runs in a browser. Real-time reloads, time travel debugging, and automatic waiting.
FreeOpen Source
🛡️ Snyk
Find and fix vulnerabilities in your dependencies and containers. Integrates with your CI/CD pipeline and IDE.
Free
📈 k6
Modern load testing tool by Grafana. Write tests in JavaScript, run from CLI or cloud, with beautiful result dashboards.
FreeOpen Source
💣 Artillery
Cloud-scale load testing for APIs and WebSocket services. YAML-based test definitions with detailed performance reports.
FreeOpen Source
🔍 Trivy
Comprehensive security scanner for containers, filesystems, and Git repos. Find vulnerabilities, misconfigs, and secrets.
FreeOpen Source
🤖 Dependabot
Automated dependency updates built into GitHub. Keeps your packages secure and up to date with automatic PRs.
Free
🔓 Have I Been Pwned
Check if your email or password has been compromised in a data breach. Essential security hygiene for developers.
Free